Electrical problems


Information and questions on GL1100 Goldwings (1980-1983)
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ram11397
Posts: 333
Joined: Thu May 12, 2011 9:58 pm
Location: Westerly, Rhode Island
Motorcycle: 1982 GL1100A Aspencade

Electrical problems

Postby ram11397 » Sun Aug 05, 2012 8:34 pm



Hi,
Can you help? Not sure how to explain this but here goes, I have spotlights on the front of the bike extra lights on the back and of course the radio well it draws a lot of power and if i am just running around town it kills my battery after a few days. Do i need a auxiliary battery is there such a thing? As you can tell i am clueless when it comes to electrical stuff.

Rick


Rick
1982 GL 1100 Aspencade

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scotterichmond
Posts: 613
Joined: Fri May 06, 2011 3:49 pm
Location: Marblemount,wa
Motorcycle: 1975 GL1000
[img]http://images.goldwingdocs.com/scotterichmond_32376/Modestly_restored_1975_GL1000_750/engine_repainted_even_new_embl_3919.jpg[/img]

Re: Electrical problems

Postby scotterichmond » Mon Aug 06, 2012 8:30 am

well, unfortunately, these bikes don't have much amps left over after running the OEM electrics. and an extre battry? where would the amps come from to keep it charged? There really isn't any room for add ons (ie. lights)or your battery will go down . some have modifired this bike and added an alternator to the front (called a poorboy ) I have no experience with this but the concept sounds good,

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HALBUDD
Posts: 846
Joined: Sat Aug 14, 2010 9:14 pm
Location: New Albany In
Motorcycle: 1984 gl1200a&1985GL1200A & 1996 gl 1500 aspy. us army 74-77

Re: Electrical problems

Postby HALBUDD » Mon Aug 06, 2012 9:04 pm

You could also go to led lights they will draw less power as others have said this bikes dont have a lot of left over power on them. The poor boy kit is a external alternator that will give you loads of power for more lights and other goodies. Hal
A woman that can use tools is worth her weight in gold !!

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thrasherg
Posts: 1837
Joined: Tue Oct 20, 2009 11:21 am
Location: Plano, TX
Motorcycle: 2004 GL1800, 2005 Honda Shadow 750, 2008 Yamaha R6 with RG500 engine, CRF450X, CRF230, CRF250X, XR200, CR500

Re: Electrical problems

Postby thrasherg » Tue Aug 07, 2012 1:08 pm

As stated, adding an extra battery will not help, it will also go flat, but your bike would run longer before both batteries are flat. The problem is that the alternator is not able to generate enough current to drive all your lights and recharge the battery. You really have only 2 options, fit a more powerful alternator (and regulator/rectifier), reduce your power needs.

As mentioned the poor boy is one solution for fitting a bigger alternator, but it's quite expensive, a lot of work and in my opinion not very pleasing to the eye.. The better option would be to look at ways of reducing your power needs, as stated, LED lights are expensive but help significantly with reducing power needs, equally can you try turning off some lights when you are riding around town? As the engine revs increase so does the power output from the alternator, you might find that at highway speeds your alternator can produce enough power to run your lights, but when putting around town it can't. The only way to know is to fit an ammeter to your bike and then just make sure it is always indicating a positive charge to the battery..

Gary

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ram11397
Posts: 333
Joined: Thu May 12, 2011 9:58 pm
Location: Westerly, Rhode Island
Motorcycle: 1982 GL1100A Aspencade

Re: Electrical problems

Postby ram11397 » Tue Aug 07, 2012 9:16 pm

Hi,
thanks for the input, I am going to try going to LED where i can (does anyone have a source for these?) and switch off unnecessary lights when going on short rides.

Rick
Rick
1982 GL 1100 Aspencade

goldminerusa
Posts: 245
Joined: Wed Mar 07, 2012 8:20 am
Location: Southern NH, home again!
Motorcycle: 1982 gl 1100standard, 1983 1000c

Re: Electrical problems

Postby goldminerusa » Sat Aug 11, 2012 9:14 pm

An 1100 alternator makes 300 watts at 5000 rpm. At idle it`s making enough juice to run the bike, if the stock headlight is on, the battery is draining. At 1800 rpm the alternator is putting out enough to run the bike and charge the battery.




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